JP5665243B1 - Steam equipment evaluation system - Google Patents

Abstract

[PROBLEMS] To make an accurate and easy-to-understand evaluation of the need for improvement of steam-using equipment. A data input unit S1 that acquires a plurality of steam generation cost factors σi that form a cost necessary for generating steam in a steam generation device Gs in a steam use facility P, and the acquired steam generation cost factors σi The standardization calculation unit S2 that calculates the steam generation cost C normalized to a single reference value, and evaluation information for evaluating the need for improvement for the steam-using facility P based on the calculated steam generation cost C And an evaluation information generation unit S4 that generates I. [Selection] Figure 1

Description

  The present invention relates to a steam use facility evaluation system or a steam use facility evaluation method for evaluating the necessity for improvement of a steam use facility.

  For example, in a steam using facility such as a petrochemical plant, the state of steam use in the entire facility is closely related to the state of the production process. However, in general, in steam-using facilities, high-pressure steam generated by a boiler or the like is used in steam-using equipment, etc., and then the used steam is used again as another medium-pressure steam or low-pressure steam in another steam-using equipment. The use of steam in the entire facility becomes complicated. For this reason, it is difficult to accurately evaluate the necessity for improvement for such steam-using equipment.

  Conventionally, as a simulation system for evaluating the necessity of improvement for the steam use facility where the steam use situation described above is complicated, for example, each steam passing through each part of the steam piping system as information on the steam use situation of the steam use facility Storage means for storing quantity information, input means for inputting equipment improvement technique information for steam using equipment, steam use status information of steam using equipment stored in the storage means, and input to the input means Simulating means for calculating information on the amount of each steam passing through each part of the steam piping system after implementation of the improvement method as predicted steam usage status information of the facility using the steam after the implementation of the improvement method based on the equipment improvement method information obtained, Output means for outputting the predicted steam usage status information of the steam use facility calculated by the simulating means, and the output means includes a steam piping system. Steam that passes through a portion corresponding to each display body in the steam usage status information stored in the storage means, in the vicinity of each display body on the overall configuration diagram of the steam-using facility whose portion is indicated by a display body Steam use facility simulation configured to output an image displaying information on the amount of steam and information on the amount of steam passing through a portion corresponding to each display body in the predicted steam use status information calculated by the simulating means System has been proposed (see Patent Document 1).

Japanese Patent No. 5065809

  However, the above simulation system evaluates the necessity of improvement for steam-using equipment by the amount of steam, and it is precisely how much profit is gained by the improvement or how much was lost before the improvement. There was a problem that was hard to understand.

  Further, in the above simulation system, there are many problems that it is difficult to grasp the information at a glance because a large amount of steam is displayed on the screen and distributed on the screen.

In view of this situation, the main object of the present invention is to provide steam-using facility evaluation system for improved need be evaluated accurately and clearly to the steam-using facility.

The first characteristic configuration of the present invention relates to a steam use facility evaluation system,
Data that periodically obtains a plurality of steam generation cost factors that form costs necessary for generating steam in a steam generating device in a steam using facility and each amount of steam that passes through each part of the steam piping system of the steam using facility An input section;
A standardization calculation unit that calculates the steam generation cost normalized to a single reference value from the acquired steam generation cost factor;
Based on the calculated steam generation cost, evaluation information for evaluating the necessity of improvement for the steam using facility is periodically generated , and it is evaluated that the steam using facility needs to be improved in the evaluation information. In this case, the operation status of the steam using facility when the improvement measure based on the evaluation information is implemented is calculated, and the calculated operating status of the steam using facility after the improvement and the current operating status of the steam using facility are calculated. and an evaluation information generation unit for generating improved comparison information comparing,
The evaluation information generation unit evaluates that the steam generation facility needs to be improved when the steam generation cost exceeds a first threshold calculated from a reference value of the steam generation cost as the evaluation information. In the configuration,
As the improvement comparison information, the value of each steam amount passing through each part of the steam piping system of the steam-using facility when the improvement measure is implemented is calculated, and the obtained steam amount value and the improvement measure are implemented. And generating comparison information with the value of the amount of steam in the case of
It is the block diagram information of the said steam use installation which showed each part of the said steam piping system with the display body, Comprising: Each display of the value of the said steam amount at the time of implementing the said improvement measure in each vicinity of each display body The configuration diagram information is generated to display the value of the amount of steam passing through the part corresponding to the body in a state associated with the improvement comparison information .

  In other words, according to the above configuration, since the evaluation information for evaluating the necessity for improvement of the steam using facility is generated from the viewpoint of the cost that is easy to understand the loss of the steam generation cost, the degree of profit or loss at first glance is considered to be necessary Compared to the conventional example that evaluates with a steam amount that is difficult to grasp, it is possible to accurately and easily evaluate the necessity of improvement for the steam-using facility based on the generated evaluation information.

  Furthermore, in the above-described configuration, even if the steam use facility described above is complicated, the steam use facility is used for the steam use facility using a single reference value of steam generation cost in which a plurality of steam generation cost factors are standardized. In order to evaluate the need for improvement, it is possible to evaluate whether or not improvements to steam-using equipment are necessary, and the effects after the improvement, using only the value of 1 as the steam generation cost. And it can be easily evaluated.

Data that periodically obtains a plurality of steam generation cost factors that form costs necessary for generating steam in a steam generating device in a steam using facility and each amount of steam that passes through each part of the steam piping system of the steam using facility An input section;
A standardization calculation unit that calculates the steam generation cost normalized to a single reference value from the acquired steam generation cost factor;
Based on the calculated steam generation cost, evaluation information for evaluating the necessity of improvement for the steam using facility is periodically generated , and it is evaluated that the steam using facility needs to be improved in the evaluation information. In this case, the operation status of the steam using facility when the improvement measure based on the evaluation information is implemented is calculated, and the calculated operating status of the steam using facility after the improvement and the current operating status of the steam using facility are calculated. and an evaluation information generation unit for generating improved comparison information comparing,
The evaluation information generation unit is configured to evaluate whether or not improvement to the steam using facility is necessary based on a change with time of the steam generation cost as the evaluation information,
As the improvement comparison information, the value of each steam amount passing through each part of the steam piping system of the steam-using facility when the improvement measure is implemented is calculated, and the obtained steam amount value and the improvement measure are implemented. And generating comparison information with the value of the amount of steam in the case of
It is the block diagram information of the said steam use installation which showed each part of the said steam piping system with the display body, Comprising: Each display of the value of the said steam amount at the time of implementing the said improvement measure in each vicinity of each display body The configuration diagram information is generated to display the value of the amount of steam passing through the part corresponding to the body in a state associated with the improvement comparison information .

In other words, according to the above configuration, the cost of generating steam is easy to understand.
In order to generate evaluation information that evaluates the need for improvement for steam-using equipment,
Compared to the conventional example that evaluates the necessity for improvement with the amount of steam that is difficult to grasp at a glance,
Based on the evaluation information, the need for improvement of steam-using equipment is accurately and easily evaluated
it can.
Furthermore, in the above configuration, even in the steam use facility where the steam use situation described above becomes complicated,
Steam generation cost is calculated using a single reference value, steam generation cost, which is normalized by multiple steam generation cost factors.
In order to evaluate the need for improvement of the facilities using the steam, whether or not improvements to the facilities using the steam are necessary
It is possible to evaluate the effect after improvement and the value of steam generation cost only by one value.
It is possible to evaluate the need for improvement of energy-use equipment in an extremely accurate and easy-to-understand manner.

The third characteristic configuration of the present invention is a configuration suitable for the implementation of the first characteristic configuration.
Determining a second threshold that is lower than the first threshold;
The evaluation information generation unit, when the steam generating cost is below the second threshold value, and with the evaluation information lies in that the operation of the steam-using facility is are a configuration that evaluates as good .

  In other words, according to the above configuration, the improvement evaluation information indicating that the operation of the steam using facility is good indicates that the operation of the steam using facility is good. The state can help to search for the optimum state of the steam-using facility, and thereby the need for improvement for the steam-using facility can be evaluated more accurately and clearly based on the generated evaluation information.

The fourth characteristic configuration of the present invention is a configuration suitable for implementing the first to third characteristic configurations.
With the previous SL assessment information lies in generating the improvement with respect to the steam-using facility.

That is, according to the said structure, based on an improvement measure, improvement of steam utilization equipment can be performed exactly.
The fifth characteristic configuration of the present invention is a configuration suitable for implementing the first to fourth characteristic configurations,
The evaluation information generation unit generates graph information indicating a change with time in the steam generation cost as one of the evaluation information,
The graph information is displayed on a monitor.
That is, according to the above configuration, since the change with time in the steam generation cost is displayed on the monitor, not only the current steam generation cost but also the past steam generation cost fluctuation can be grasped as evaluation information. The cause of fluctuations in past steam generation costs can be analyzed, for example, by referring to the operating status of the steam-using equipment, thereby further improving the need for improvement of the steam-using equipment based on the generated evaluation information. Accurate and easy to evaluate.

The sixth characteristic configuration of the present invention is a configuration suitable for implementing the first to fifth characteristic configurations,
The steam generating device includes a waste heat boiler that generates steam by waste heat generated in operation of the steam using facility.

  In other words, according to the above configuration, the waste heat boiler includes a special form of steam generating equipment that generates steam in a form that does not substantially consume fuel, and the steam generating equipment that tends to be complicated in terms of cost generation. Since the steam-use facility evaluation system with the first to fifth feature configurations is applied, whether the steam-use facility needs to be improved or the effect after the improvement is a single value of the steam generation cost and a value that is easy to grasp This makes it possible to evaluate the necessity for improvement of steam-using equipment more accurately and clearly.

The seventh characteristic configuration of the present invention is a configuration suitable for implementing the first to sixth characteristic configurations,
The data input unit obtains a reference value of each steam amount passing through each part of the steam piping system of the steam-using facility,
The evaluation information generation unit generates comparison information between the acquired value of the steam amount and a reference value thereof, and is configuration diagram information of the steam use facility in which each part of the steam pipe system is indicated by a display body. The configuration diagram information for displaying the value of the amount of steam passing through the portion corresponding to each display body among the acquired values of the steam amount in the vicinity of each display body in a state associated with the comparison information Produces
The configuration diagram information is displayed on a monitor.

  In other words, according to the above configuration, it is possible to grasp the amount of each steam passing through each part of the steam piping system of the steam-using facility in a state associated with the comparison information with the reference value. It is possible to evaluate the necessity for improvement for the steam-using equipment in consideration of the information, and thereby it is possible to evaluate the necessity for improvement for the steam-using equipment more accurately and easily based on the generated evaluation information.

Outline diagram of evaluation of improvement necessity for steam using facility according to the present invention Schematic of the overall configuration of the steam piping system of the steam-using equipment Diagram showing steam traps and valves in steam-using equipment Schematic diagram of the overall configuration of the fuel piping system for steam-using equipment Configuration diagram around the first medium- and high-pressure turbine of the steam-using facility Configuration diagram around a medium pressure turbine using steam Configuration diagram of a steam-use facility evaluation system Explanatory drawing of output image of graph information of steam generation cost Explanatory drawing of output image of steam piping system of steam using equipment Explanatory drawing of the output image of the fuel piping system of the steam-using facility Explanatory drawing of the output image around the first medium and high pressure turbine of the steam using facility Explanatory drawing of the output image around the medium-pressure turbine of the steam-using facility Explanatory drawing of output image of drain discharge location Illustration of output image listing improvement ideas

  FIG. 1 shows an outline of an evaluation of the necessity for improvement of a steam using facility by the steam using facility evaluation system S according to the present invention. This steam-using facility evaluation system S is mainly a data input unit S1 that acquires a plurality of steam generation cost factors σi in the target steam-using facility, and a standard that calculates the steam generation cost C from the acquired steam generation cost factors σi. Calculation unit S2, threshold setting unit S3 for setting various thresholds for evaluating the necessity for improvement for steam-using equipment, and for evaluating the necessity for improvement for the target steam-using equipment based on the calculated steam generation cost C An evaluation information generation unit S4 that generates evaluation information I and a monitor S5 that displays the evaluation information I are configured.

The steam generation cost factor σi forms a cost necessary for generating steam in the steam generating equipment in the target steam using facility. For example, the amount of steam generated in each steam generating equipment and used in each steam generating equipment This includes the type, price, and amount of fuel used (for each fuel when two or more types of fuel are used in combination), steam generation efficiency relative to the amount of fuel used in each steam generator.
The steam generation cost C is a value obtained by standardizing (or standardizing) a plurality of steam generation cost factors σi into a single reference value.

  Further, in the threshold setting unit S3, the steam generation cost C is a threshold that is lower than the first threshold x1 and the first threshold x1 that is used as a reference for evaluating that improvement to the steam using facility is necessary. The second threshold value x2 or the like used as a criterion for evaluating that the operation is good is set based on the reference value of the steam generation cost C determined for each target steam-using facility.

  In the evaluation of the necessity of improvement for steam-using equipment, in this steam-using equipment evaluation system S, the various steam generation cost factors σi are acquired by the data input unit S1, and the steam generation cost factor σi is simply set by the standardization calculation unit S2. The steam generation cost C normalized to one reference value is calculated.

  In the evaluation information generation unit S4, the steam generation cost calculated as the graph information Ia indicating the change over time of the steam generation cost C, the first threshold value x1 and the second threshold value x2 set by the threshold value setting unit S3, and the like. The improvement evaluation information Ib (improvement is required, operation is good, etc.) that evaluates the necessity of improvement for the steam-using equipment by comparing C is generated as evaluation information, and the evaluation information is displayed on the monitor S5. Is done.

  As described above, the steam-using facility evaluation system S uses a single reference value obtained by standardizing a plurality of steam generation cost factors σi called the steam generation cost C to improve the steam-using facility in terms of cost that is easy to understand. In order to generate evaluation information that evaluates the necessity, it is necessary to evaluate whether or not improvements to the steam-using equipment are necessary and the effects after the improvement with a single value of the steam generation cost and a value that makes it easy to grasp the profit and loss. This makes it possible to easily and easily evaluate the need for improvement of the steam-using equipment.

  Next, an example in which the steam use facility evaluation system S is applied to a steam use facility P that is a petrochemical plant will be described.

  FIG. 2 shows a schematic diagram of the overall configuration of the steam piping system of the steam-using facility P. The steam piping system of the steam using facility P mainly includes four steam pipes 1 to 4 that feed steams having different pressures, a steam generating device Gs, and a steam using device Us. In the steam use facility P, steam generated by the steam generation equipment Gs is supplied to various steam use equipment Us through the steam pipes 1 to 4 and used for various purposes.

  The steam pipes 1 to 4 will be described in detail. 1 is a high-pressure steam pipe that feeds high-pressure steam (12000 kPa (G) in this embodiment), 2 is medium-high pressure steam (4000 kPa (G in this embodiment) )) Is a medium pressure steam pipe, 3 is an intermediate pressure steam (1000 kPa (G) in this embodiment), and 4 is a low pressure steam (140 kPa (G) in this embodiment). ) Is a low-pressure steam pipe.

  High-pressure steam is supplied to the high-pressure steam pipe 1 from a first boiler 5 which is a steam generating device Gs. The first boiler 5 uses the fuel gas and the fuel A in combination to generate steam. Further, the ratio of the fuel gas to the fuel A used for generating steam in the first boiler 5 is appropriately changed according to the amount of generated steam, the operating condition of the steam using facility, and the like.

  The high-pressure steam supplied to the high-pressure steam pipe 1 is supplied to the first turbine generator 6 that is the steam-using equipment Us connected to the high-pressure steam pipe 1 and used there. The high-pressure steam supplied from the high-pressure steam pipe 1 to the first turbine generator 6 is used for power generation in the first turbine generator 6 so that the pressure is reduced to medium-high pressure steam. To be supplied.

  The high-pressure steam pipe 1 is connected to a first reduced pressure supply path 7 that decompresses the high-pressure steam in the high-pressure steam pipe 1 and supplies it to the medium-high pressure steam pipe 2 as medium-high pressure steam. Part of the steam in the high-pressure steam pipe 1 is appropriately supplied to the medium-to-high pressure steam pipe 2 by opening and closing a control valve (not shown) interposed in the first decompression supply path 7.

  Medium-high pressure steam is supplied to the medium-high pressure steam pipe 2 from the first turbine generator 6, the first decompression supply path 7, and the second boiler 8 and the waste heat boilers 9 to 12 which are the steam generator Gs. . The second boiler 8 generates steam using fuel gas. The waste heat boilers 9 to 12 (and waste heat boilers 19 and 22 described later) generate steam by waste heat generated in the operation of the steam using facility P (for example, operation of a combustion furnace described later). That is, the waste heat boilers 9 to 12 (and waste heat boilers 19 and 22 described later) substantially do not require fuel for generating steam.

  The medium-high pressure steam supplied to the medium-high pressure steam pipe 2 is a second turbine generator 13, a first medium-high pressure turbine 14, and a second medium-high pressure turbine 15, which are steam-using equipment Us connected to the medium-high pressure steam pipe 2. , The third medium-high pressure turbine 16 and the heat exchanger 17 are used there.

  After the medium and high pressure steam supplied from the medium and high pressure steam pipe 2 to the second turbine generator 13 is used for power generation in the second turbine generator 13, the pressure is reduced to medium or high pressure steam or low pressure steam. The intermediate pressure steam pipe 3 or the low pressure steam pipe 4 is supplied. The medium / high pressure steam supplied from the medium / high pressure steam pipe 2 to the first medium / high pressure turbine 14 is decompressed to medium pressure steam by being used in the second medium / high pressure turbine 14, and then is supplied to the medium pressure steam pipe 3. Supplied. The intermediate / high pressure steam supplied from the intermediate / high pressure steam pipe 2 to the second intermediate / high pressure turbine 15 is decompressed to low pressure steam by being used in the second intermediate / high pressure turbine 15 and then supplied to the low pressure steam pipe 4. The

  The intermediate / high pressure steam pipe 2 is connected to a second decompression supply path 18 that decompresses the medium / high pressure steam of the intermediate / high pressure steam pipe 2 and supplies it to the intermediate pressure steam pipe 3 as intermediate pressure steam. A part of the steam in the intermediate / high pressure steam pipe 2 is appropriately supplied to the intermediate pressure steam pipe 3 by opening / closing a control valve (not shown) interposed in the second decompression supply path 18.

  Medium pressure steam is supplied to the medium pressure steam pipe 3 through the second turbine generator 13, the first medium and high pressure turbine 14, the second decompression supply path 18, and the waste heat boiler 19 which is the steam generation equipment Gs. .

  The intermediate-pressure steam supplied to the intermediate-pressure steam pipe 3 is supplied to the intermediate-pressure turbine 20 and the heat exchanger 21 which are the steam use equipment Us connected to the intermediate-pressure steam pipe 3, and used there. The intermediate-pressure steam supplied from the intermediate-pressure steam pipe 3 to the intermediate-pressure turbine 20 is decompressed to low-pressure steam by being used in the intermediate-pressure turbine 20 and then supplied to the low-pressure steam pipe 4.

  Low-pressure steam is supplied to the low-pressure steam pipe 4 through the second turbine generator 13, the second medium- and high-pressure turbine 15, the medium-pressure turbine 20, and the waste heat boiler 22 that is the steam generator Gs.

  The low-pressure steam supplied to the low-pressure steam pipe 4 is supplied to the deaerator 23 and the heat exchanger 24, which are steam-using equipment Us, and used there. In the deaerator 23, degassing of water supplied as a steam source to the first boiler 5, the second boiler 8, and the waste heat boilers 9 to 12, 19, and 22 by heating with the low-pressure steam supplied from the low-pressure steam pipe 4. Qi is done. Further, extra low-pressure steam in the low-pressure steam pipe 4 is discharged out of the system as unnecessary steam through the vent pipe 25.

  As described above, the steam use facility P is configured such that after the steam generated by the steam generation device Gs is used by the steam use device Us, it is sequentially reused by the steam use device Us connected to the steam pipe on the lower pressure side. It has become.

  In addition, each part of the steam piping system of the steam use facility P includes information on the steam passing through each part (flow rate, pressure, temperature, etc.), steam generation amount in the steam generation device Gs, steam use amount in the steam use device Us, Various detectors (not shown) for detecting information such as the amount of power generated in the first and second turbine generators 6 and 13 and transmitting the information to the steam using device evaluation system S are provided. Information detected by this detector is transmitted to the steam use facility evaluation system S. Depending on the installation location of the equipment, the importance of monitoring the equipment and the information to be detected, various information is collected by inspection by the inspector, and the inspector inputs the various information to the steam-using facility evaluation system S. May be.

  Note that FIG. 2 is a schematic diagram only. In FIG. 2, each device 1 to 25 is only displayed one by one, but each device 1 to 25 is necessarily one in the steam piping system of the steam use facility P. It does not mean that it is provided only one by one. For example, in FIG. 2, only one first turbine generator 6 is displayed, which indicates that only one first turbine generator 6 is provided in the entire steam usage facility P. Instead, it includes that the plurality of first turbine generators 6 provided in the entire steam use facility P are simplified and collectively displayed as one first turbine generator 6. The same applies to the other devices 1 to 25.

  As shown in FIG. 3, a large number of steam traps T and valves B are distributed in each part of the steam piping system in the steam using facility P. And the detector D which is equipped with the sensor for apparatus state detection, and transmits the detected apparatus state information (temperature, vibration, etc.) to the steam use facility evaluation system S together with the position information and the type information of the installed apparatus is a monitoring target. It is equipped for each set steam trap T and valve B. As a result, the equipment state information for each steam trap T and each valve B to be monitored is collected in the steam use facility evaluation system S, and the drain use point (steam trap T and valve B) is collected by the steam use facility evaluation system S. Can be monitored constantly or periodically.

  The detector D is not directly mounted on the steam trap T or the valve B, but is installed in the vicinity thereof to indirectly detect the device status information (temperature, vibration, etc.) of the steam trap T or the valve B to be monitored. You may do it.

  In addition, depending on the installation environment of the drain discharge location such as the installation location and the importance of monitoring the drain discharge location, the inspector does not use the detector D, but the inspector has equipment state information on each drain discharge location (steam trap T and valve B). Are collected by a portable detector, and the collected equipment state information is input to the steam-using facility evaluation system S. That is, in this steam-using facility P, according to conditions such as the installation environment of each drain discharge location and the importance of monitoring, the equipment status information is collected at each drain discharge location by the detector D and the inspection by the inspector Categorize as one that collects device status information.

  In addition, you may make it collect apparatus state information with the detector D of all the drain discharge locations, or you may make it collect apparatus status information by the inspection by an inspector about all drain discharge locations.

  FIG. 4 shows a partial configuration of the fuel piping system of the steam using facility P. The fuel piping system of the steam-using facility P includes two fuel gas pipes 30 and 31, combustion furnaces 32 to 35, the first and second boilers 5 and 8 described above, and a fuel tank that stores fuel for the liquid C4 fraction. 36, a gas turbine 37 to which fuel for the C4 fraction is supplied. Hereinafter, a device that supplies fuel gas to the fuel gas pipes 30 and 31 is referred to as a fuel gas generating device Gf, and a device that receives fuel gas supply from the fuel gas tubes 30 and 31 is referred to as a fuel gas using device Uf.

  The fuel gas pipes 30 and 31 will be specifically described. Reference numeral 30 denotes a high-pressure gas pipe that transports high-pressure fuel gas, and 31 is a low-pressure gas pipe that transports low-pressure fuel gas.

  In the high-pressure gas pipe 30, high-pressure fuel gas supplied from the combustion furnaces 32 and 33 that are the fuel gas generator Gf is transported to a transport destination (not shown). The high-pressure gas pipe 30 is connected to a supply path 38 that decompresses the high-pressure fuel gas in the high-pressure gas pipe 30 and supplies it to the low-pressure gas pipe 31 as a low-pressure fuel gas. The fuel gas in the high-pressure gas pipe 30 is appropriately supplied to the low-pressure gas pipe 31 by opening / closing a control valve (not shown) interposed in the supply path 38.

  In the low-pressure gas pipe 31, the low-pressure fuel gas supplied from the supply path 38 is transported to a transport destination (not shown), and a part of the transported low-pressure fuel gas is a combustion furnace 34, 35 that is a fuel gas use device Uf. Are supplied to the first and second boilers 5 and 8 described above. The combustion furnaces 34 and 35 to which the fuel gas is supplied generate fuel for the C4 fraction, and the generated fuel for the C4 fraction is stored in the fuel tank 36, and part of the fuel is used as necessary. It is supplied to the gas turbine 37 which is the equipment Uf. The first and second boilers 5 and 8 generate steam by the supplied fuel gas. The first boiler 5 is also supplied with fuel A (not shown, for example, petroleum, coal, etc.) different from the fuel gas.

  Each part of the fuel piping system of the steam use facility P includes information on the fuel gas (flow rate, pressure, temperature, etc.) passing through each part, the amount of fuel gas generated in the fuel gas generator Gf, and the fuel usage in the fuel gas use equipment Uf A detector (not shown) that detects information such as the amount and the amount of liquid fuel stored in the fuel tank and transmits the information to the steam using device evaluation system S together with position information and model information is provided. Information detected by this detector is transmitted to the steam use facility evaluation system S. Depending on the installation location of the equipment, the importance of monitoring the equipment and the information to be detected, various information is collected by inspection by the inspector, and the inspector inputs the various information to the steam-using facility evaluation system S. May be.

  As in FIG. 2, each of the devices 5, 8, 30 to 38 in FIG. 4 is shown only one each in FIG. 4, but each device 5 is not necessarily included in the fuel piping system of the steam use facility P. It does not mean that only one each of 8, 30 to 38 is provided, and each of the plurality of devices 5, 8, 30 to 38 provided in the entire steam using facility P is simplified to one. Includes being displayed together.

Next, the application of the steam using equipment in the steam using equipment P and the configuration around the steam using equipment will be exemplified.
For example, FIG. 5 is a configuration diagram around the first medium / high pressure turbine 14 showing one of the uses of the first medium / high pressure turbine 14 as a steam-using device. Liquid fuel is generated around the first medium-high pressure turbine 14.

  More specifically, the first medium-high pressure turbine 14 is connected to the compressor 50, and the steam St is supplied to the first medium-high pressure turbine 14 from the steam inlet passage 51 communicating with the medium-high pressure steam pipe 2. 50 drives. By driving the compressor 50, the fuel gas F supplied from the fuel gas supply path 53 to the compressor 50 is compressed and generated into the liquid fuel L. The produced liquid fuel L is discharged through the liquid fuel supply path 54. The steam St supplied from the steam inlet path 51 to the first medium- and high-pressure turbine 14 is discharged through a steam outlet path 52 communicating with the intermediate-pressure steam pipe 3. Further, the amount of the steam St supplied to the first intermediate / high pressure turbine 14 is configured to be adjustable by the adjustment valve 55.

  The first medium-high pressure turbine 14 and the compressor 50 are connected via a lubricating oil supply path 59 and a motor pump 58 driven by a turbine pump 56 and a motor 57 coupled to the medium-pressure turbine 20 described above. The turbine pump 56 is driven by supplying the steam St to the intermediate pressure turbine 20 from the steam inlet path 60 communicating with the intermediate pressure steam pipe 3. The steam St supplied from the steam inlet path 60 to the intermediate pressure turbine 20 is discharged through a steam outlet path 61 communicating with the intermediate pressure steam pipe 3. By driving the turbine pump 56 and the motor pump 58, the lubricating oil O is supplied to the first medium-high pressure turbine 14 and the compressor 50. By stably supplying the lubricating oil O, the first medium-high pressure turbine 14 and the compressor 50 are driven smoothly.

  Basically, the lubricating oil O is supplied to the first medium-high pressure turbine 14 and the compressor 50 by the motor pump 58. When the supply pressure of the lubricating oil O becomes a set value or less, the turbine pump 56 Lubricating oil O is also supplied. For this reason, when the supply pressure of the lubricating oil O becomes equal to or lower than the set value, an amount of steam St necessary for causing the turbine pump 56 to perform a predetermined operation is supplied to the intermediate pressure turbine 20 by adjusting the adjustment valve 62. The Even when the lubricating oil O is supplied only by the motor pump 58, the steam St is supplied to the intermediate pressure turbine 20 so as to perform the slow roll operation for warming up by adjusting the adjustment valve 62.

  A steam trap T is provided in the steam inlet passage 51 and the steam outlet passage 52 of the first medium-high pressure turbine 14, the steam inlet passage 60 and the steam outlet passage 61 of the intermediate pressure turbine 20, and the intermediate pressure turbine 20. Then, with each steam trap T as a monitoring target, the above-described detector D detects the equipment state information (temperature, vibration, etc.) of each steam trap T and transmits it to the steam-using facility evaluation system S.

  The steam inlet passage 51 and the steam outlet passage 52 of the first medium-high pressure turbine 14, the fuel gas supply passage 53 and the liquid fuel supply passage 54 of the compressor 50, and the lubricating oil supply passage 59 are provided with pressure gauges 63-as detectors D. 68 is equipped to detect the pressure of the fluid flowing through each location. The steam inlet passage 51 of the first medium-high pressure turbine 14 and the liquid fuel supply passage 54 of the compressor 50 are equipped with flow meters 69 and 70 as detectors D, and the flow rate of the steam St or liquid fuel is detected. Further, the rotational speed of the first intermediate / high pressure turbine 14 is measured by a rotational speed meter 71 as a detector D connected to the first intermediate / high pressure turbine 14. Further, the motor 58 is equipped with a temperature vibration sensor 72 as a detector D, and the temperature and vibration of the motor 58 are detected. Various types of information detected by the pressure gauges 63 to 68, the flow meters 69 and 70, the revolution meter 71, and the temperature vibration sensor 72 are transmitted to the steam using device evaluation system S.

Similarly, as an example of the use of the steam using equipment Us in the steam using equipment P and the configuration around the steam using equipment Us, FIG. 6 shows a configuration diagram around the intermediate pressure turbine 20 as the steam using equipment Us. FIG. 6 shows an intermediate pressure turbine 20 different from the intermediate pressure turbine 20 in FIG. 5, and shows a different application from the intermediate pressure turbine 20 in FIG. 5.
Around the intermediate pressure turbine 20, water for generating steam is supplied to the waste heat boilers 9 to 12, 19, and 22.

  More specifically, the periphery of the intermediate pressure turbine 20 includes a turbine pump 80 connected to the intermediate pressure turbine 20 and a motor pump 82 driven by a motor 81. The turbine pump 80 is driven by supplying steam St to the intermediate pressure turbine 20 from a steam inlet path 83 communicating with the intermediate pressure steam pipe 3. By driving the turbine pump 80 and the motor pump 82, water for generating steam is supplied to the waste heat boilers 9 to 12, 19, and 22 through the water supply passage 85. The steam St supplied from the steam inlet path 83 to the intermediate pressure turbine 20 is discharged through the steam outlet path 84 communicating with the low pressure steam pipe 4. The amount of steam St supplied to the intermediate pressure turbine 20 is configured to be adjustable by an adjustment valve 86.

  Basically, the water W for generating steam is supplied to the waste heat boilers 9 to 12, 19, 22 by the motor pump 82, and when the supply pressure of the water W becomes a set value or less, the turbine pump 80 Water W is also supplied. Therefore, only when the supply pressure of the water W becomes equal to or lower than the set value, the amount of steam St necessary for causing the turbine pump 80 to perform a predetermined operation is supplied to the intermediate pressure turbine 20 by adjusting the adjustment valve 86. The When the water W is supplied only by the motor pump 82, the steam St is not supplied from the steam inlet path 83. The intermediate pressure turbine 20 is warmed by the steam St in the steam outlet path 84.

  The turbine pump 80 and the trace pipes 87 through which the steam St passes are respectively provided in the inlet-side water supply path 85a and the outlet-side water supply path 85b of the turbine pump 80. Then, by appropriately repeating the supply of the steam St to the trace pipe 87 and the interruption of the supply steam St, or by changing the amount of steam to be passed and the temperature of the steam St, the temperature of the water W flowing therethrough becomes an appropriate temperature. Kept. Drains such as condensate and condensed water that change from the supply steam St and stay in the trace pipes 87 are discharged by the steam traps T installed in the trace pipes 87.

  In addition to the trace pipe 87, the steam trap T is also provided in the intermediate pressure steam pipe 3 and the steam inlet path 83 and the steam outlet path 84 of the intermediate pressure turbine 20. Then, with each steam trap T as a monitoring target, the above-described detector D detects the equipment state information (temperature, vibration, etc.) of each steam trap T and transmits it to the steam-using facility evaluation system S. This detector D is also provided at a position where the device status information (temperature, vibration, etc.) of the motor 82 can be detected, and the device status information is detected by the detector D, and the steam use facility evaluation system S Sent.

  The intermediate pressure steam pipe 3 is equipped with a pressure gauge 88 and a flow meter 89 as the detector D, and the pressure and flow rate of the steam St supplied from the intermediate pressure steam pipe 3 to the steam inlet path 83 of the intermediate pressure turbine 20. Is detected. The water supply passage 85 is also equipped with a pressure gauge 90 as the detector D, and the discharge pressure of the water W for generating steam supplied to the waste heat boilers 9 to 12, 19, and 22 is detected. The intermediate pressure turbine 20 is equipped with a rotation speed meter 91 as a detector D, and the rotation speed of the intermediate pressure turbine 20 is detected. The motor 81 is equipped with an ammeter 92 and a temperature vibration sensor 93 as a detector D, and the current value, temperature, and vibration of the motor 81 are detected. The detected various information is transmitted to the steam using device evaluation system S.

  Next, the steam using facility evaluation system S will be described. FIG. 7 shows a system configuration of the steam-using facility evaluation system S. The steam use facility evaluation system S includes the data input unit S1, the standardization calculation unit S2, the threshold setting unit S3, the evaluation information generation unit S4, the monitor S5, the storage unit S6 for storing various information, and the evaluation information generation unit S4. And an instruction input unit S7 for inputting an instruction for.

  The data input unit S1 acquires information transmitted from each detector D provided in the steam use facility P and information collected by an inspector. In addition, the various information acquired is classified into information Ja-Jd as shown below.

  Specifically, the acquired various information includes the steam piping system information Ja such as the amount of steam passing through each part of the steam piping system of the steam using equipment P, and the fuel gas passing through each part of the fuel gas piping system of the steam using equipment P. The fuel piping system information Jb based on the quantity, etc., and the information on the equipment for each equipment (steam generating equipment Gs, steam using equipment Us, etc.) in the steam using equipment P are summarized in a state of associating the information with the peripheral equipment and piping. Device information Jc and drain discharge location information Jd that summarizes the state information of the drain discharge location in the steam using facility P. These pieces of information Ja to Jd are stored in the storage unit S6.

  Specifically, the steam piping system information Ja shown in FIG. 2 is generated by the steam generating device Gs, supplied steam to the steam pipes 1 to 4 by the steam generating device Gs, and used by each steam using device Us. Steam, supply steam from 6, 13 to 15, 20 to each steam pipe 1 to 4, discharge steam from vent pipe 25, first and second decompression supply pipes 7 and 18, medium to high pressure and medium pressure steam pipe 2 , 3, main steam such as unknown steam that combines the steam passage loss amount in the steam trap T (for example, FIGS. 5 and 6) connected to each of the steam pipes 1 to 4 and the condensation in the pipes. Information on steam (information on flow rate, pressure, temperature, etc.), information on the amount of power generated by each turbine generator 6, 13, information on the power demand and amount of power received by the steam-using facility P, and the like.

  Specifically, the fuel piping system information Jb is generated from the fuel gas generated by the fuel generating device Gf, the fuel gas supplied from the fuel generating device Gf to the high-pressure gas pipe 30, the fuel gas used by the fuel using device Uf, and the supply path 38. Information on main fuel gas such as fuel gas supplied to the low-pressure gas pipe 31 (information on flow rate, pressure, temperature, etc.), information on the amount of fuel for the C4 fraction generated in the combustion furnaces 34, 35, and gas turbine 37 Information on the amount of fuel used for the C4 fraction, information on the amount of fuel for the C4 fraction such as the amount of fuel stored in the C4 fraction in the fuel tank 36, information on the amount of fuel A supplied to the first boiler 5, This is information on fuel costs required to generate steam in the two boilers 5 and 8.

  In the device information Jc, when the first medium-high pressure turbine 14 that is the steam-using device Us is taken as an example, the detector mounted on the peripheral device such as the target first medium-high pressure turbine 14 and the surrounding steam trap T and the compressor 50. It is the information put together in a state in which various information from D is associated.

  The drain discharge location information Jd includes the equipment state information (temperature, vibration, etc.) of the steam trap T and valve B to be monitored in the steam using facility P, the positional relationship of each steam trap T and valve B, and the steam trap T and valve B. Information corresponding to the corresponding relationship.

  Further, the storage unit S6 includes reference values for each value of each information Ja to Jd, and each device (steam generating device Gs, steam using device Us, fuel generating device Gf, fuel using device Uf and its surroundings) in the steam using facility. Equipment, various piping, etc.), the type and price of fuel used in each steam generator Gs, the piping layout at the drain discharge location, the state and model of the steam trap T, and the state and model of the valve B around the steam trap T Standard information Je that summarizes basic information such as a database of drain discharge points, etc., and improvement idea information Jf that summarizes improvement ideas for steam-using facilities and their specific execution contents are stored. As each reference value, the value of each information at the time of design of the steam using equipment P, the value detected in the inspection of the steam using equipment P, etc. are stored.

  The data input unit S1 acquires the reference information Je and the improvement idea information Jf from the storage unit S6 in addition to the information Ja to Jd transmitted from each detector D or collected by the inspector. That is, the data input unit S1 acquires various types of information Ja to Jf.

  In the present example, the standardization calculation unit S2 is the steam generation cost factor σi in the information acquired by the data input unit S1, and in this example, the steam generation amount in each steam generation device Gs, the fuel usage amount in each steam generation device Gs, A steam generation cost C is calculated based on the type and price of the fuel.

More specifically, the total amount of steam generated in the steam generating device Gs is obtained by summing the amounts of steam generated by the boilers 5, 8 to 12, 19, 22. Next, the total fuel cost in the steam generator Gs is calculated based on the amount of fuel used in each of the first and second boilers 5 and 8 (for the first boiler 5, the amounts of fuel gas and fuel A used for each of the second boilers). Is determined based on the amount of fuel gas used) and the price of each fuel (the waste heat boilers 9 to 12, 19, and 22 are excluded because steam is generated by the waste heat generated in the operation of the steam using facility P) . Then, the steam generation cost C is calculated by dividing the total steam generation amount in the steam generation device Gs by the total fuel cost in the steam generation device Gs.
Note that the calculated steam generation cost C is stored in the storage unit S6 (notation in FIG. 7 is omitted).

  The threshold setting unit S3 is based on the reference value of the steam generation cost C in the steam using facility P in the reference information Je, and is a first threshold that is higher than the reference value and needs to be improved for the steam using facility. x1, a second threshold value x2 that is lower than the reference value and is used as a reference for the operation of the steam-using facility being good. In place of or in addition to the first and second threshold values x1 and x2, a threshold value for evaluating the necessity for improvement of the steam using facility may be further set.

  In the evaluation information generation unit S4, as described above, the graph information Ia indicating the change over time of the calculated steam generation cost C and the improvement evaluation information Ib for the steam using equipment P (improvement is required, operation is good. Etc.) is generated. Further, in order to generate the evaluation information I, the evaluation information generation unit S4 compares each value in the various information Ja to Jd acquired in the data input unit S1 with each reference value in the corresponding reference information Je. Information Jg (such as a magnitude relationship and the amount of the difference) is generated.

  As the graph information Ia, a graph information image Ga as shown in FIG. 8 is generated. The graph information image Ga includes a calculated steam generation cost C value and its reference value, a numerical value display field ga1 for displaying the steam generation cost C value and the steam generation cost C and a numerical value display field ga1 for displaying what percentage the reference value is 100%. It is composed of a graph display field ga2 for displaying a graph showing changes in C over time. In the graph display field ga2, a line indicating a reference value of the steam generation cost is displayed together with a line indicating a change in the steam generation cost with time.

  By displaying the change over time in the steam generation cost on the monitor S5 as the graph information image Ga, it is possible to grasp not only the current steam generation cost C but also the past steam generation cost C. For example, past steam use The cause of the fluctuation of the past steam generation cost C can be analyzed by referring to the operation status of the facility P, and thus the necessity for improvement of the steam-using facility can be accurately evaluated.

  The graph display field ga2 may also display a line indicating a change with time of the fuel consumed in the steam using facility P. When steam is also generated by the waste heat boilers 9 to 12, 19, and 22 like the steam using facility P, the fuel consumed in the steam using facility P is small, that is, the operation of the steam using facility P is stagnant. The more the heat generated by the operation is reduced, the less steam is generated in the waste heat boilers 9-12, 19, and 22. Accordingly, steam must be generated by using fuel in the first and second boilers, and the amount of fuel used in the steam generating device Gs increases, resulting in an increase in steam generation cost C. Become. As described above, since the steam generation cost C and the fuel consumed in the steam use facility P have a certain degree of correlation, the change over time in the steam generation cost and the change over time in the fuel consumed in the steam use facility P are displayed together. By doing so, it becomes easy to evaluate the necessity for improvement of the steam-using equipment.

  Explaining about the improvement evaluation information Ib, the evaluation information generation unit S4 generates the improvement evaluation information Ib that the steam use facility P needs to be improved when the calculated steam generation cost C exceeds the first threshold value x1. . As a result, it can be seen that the steam-using equipment needs to be improved. In addition, when the steam generation cost C falls below the second threshold value x2, the improvement evaluation information Ib that the operation of the steam using facility P is good is generated. As a result, it can be seen that the operation of the steam using facility is good. For example, the state of the steam using facility determined to be in good operation can be used to help search for the optimum state of the steam using facility.

  When the calculated value of the steam generation cost C is a value between the first threshold value and the second threshold value, the evaluation information generation unit S4 sets the improvement evaluation information Ib that the operation of the steam using facility P is normal. Generate. In addition, in the generation of the improvement evaluation information Ib, the threshold setting unit S3 evaluates the necessity for improvement for the steam using facility P step by step in addition to setting the threshold in addition to the first and second thresholds x1 and x2. It may be performed (such as large / medium / small / high degree of urgency of improvement or large / medium / small / small degree of good driving).

  The evaluation information generation unit S4 may further generate an improvement measure for the steam using facility P in the generation of the improvement evaluation information Ib. The improvement measure is generated, for example, by referring to the obtained improvement idea information Jf and deriving one improvement idea or a combination of improvement ideas that is optimal for improvement of the current steam-using facility P by calculation. Alternatively, repair maintenance information is stored in the storage unit S6 in advance, and when it is evaluated that improvement with respect to the steam using facility P is necessary, an abnormal location is determined based on the generated comparison information Jg (for example, steam The location where the difference from the reference value in the used equipment P shows a value exceeding the allowable range is recognized as an abnormal location, or the abnormal location is recognized after judging by combining each information in the comparison information Jg) You may produce | generate by other suitable means, such as acquiring the repair maintenance information corresponding to an abnormal location.

  The improvement evaluation information Ib is output by displaying the content of the improvement evaluation information Ib (evaluation of improvement necessity or improvement measures) on the graph information image Ga or by a communication unit (not shown) For example, the content of the improvement evaluation information Ib is transmitted to a communication terminal. The content of the improvement evaluation information Ib, such as when the improvement evaluation information Ib is output only when it is evaluated that the improvement to the steam using facility P is necessary or when the operation of the steam using facility P is evaluated as good. The improvement evaluation information Ib may be output according to the above.

  The evaluation information generation unit S4 is, as one piece of evaluation information, configuration diagram information (steam piping system evaluation information) of the steam piping system of the steam using facility P that indicates each part of the steam piping system with a display body based on the steam piping system information Ja. ) Ic is also generated. Specifically, a steam piping system image Gb as shown in FIG. 9 is generated as the steam piping system evaluation information Ic.

  The evaluation information generation unit S4 includes, in the comparison information Jg, each steam amount that passes through each part of the steam piping system of the steam using facility P in the steam piping system information Ja, and a reference value corresponding to these steam amounts in the reference information Je. In the steam piping system image Gb, a portion corresponding to each display body in the value of the obtained steam amount is displayed in the vicinity of each display body in the steam piping system image Gb based on the comparison information Jg The value of the passing steam amount is displayed in a state associated with the comparison information. The state in which the value of the steam amount is associated with the comparison information means, for example, that the steam value is color-coded according to the magnitude relationship or difference from the reference value, or the numerical value is emphasized. The numerical values are enclosed in a frame, shaded and displayed, or the arrows and lines connecting the devices and the pipes are color-coded or highlighted.

In the image Gb, the equipment configuration display field gb1 indicating the steam piping system of the steam using equipment P, the total steam generation amount / unknown steam amount / unknown steam rate of the steam using equipment P (ratio of the unknown steam amount in the total steam generation amount) And a fuel display column gb3 indicating each fuel consumption, power generation, water consumption, CO ₂ consumption, etc. in the steam-using facility P.

  In the equipment configuration display column gb1, in addition to the display bodies 1 to 25 showing the respective configurations described in FIG. 2, the passing steam loss amount in each of the steam traps T connected to the steam tubes 1 to 4 and the steam tubes The total value of the steam loss lost due to condensation during feeding at 1-4 is set as the unknown steam quantity in each steam pipe 1-4, and the display bodies 26-28 that are assumed to be the destinations of each unknown steam quantity are displayed. To do. And in the vicinity of each display body 1-28 in the equipment configuration display field g1, information on the amount of steam (t / h) passing through each display body 1-28 is displayed in a state associated with the comparison information ( In FIG. 9, a value that is higher than the reference value is shaded and displayed, and a value that is lower than the reference value is displayed surrounded by a frame).

  In the steam amount display column gb2, the total steam generation amount / unknown steam amount / unknown steam rate of the steam using facility P is displayed in a state associated with the comparison information (in FIG. It is multiplied and displayed).

In the fuel display column gb3, the difference between each fuel consumption (in this example, fuel (C4), fuel gas), the power generation amount, the water consumption and these reference values in the reference information Je, and the monetary conversion value of the difference The difference from the standard value of CO ₂ consumption is displayed.

  The evaluation information generation unit S4 is, as one piece of evaluation information, based on the fuel piping system information Jb, configuration diagram information (fuel piping system evaluation information) of the fuel piping system of the steam-using facility P that indicates each part of the fuel piping system with a display body. ) Id is also generated. Specifically, a fuel piping system image Gc as shown in FIG. 10 is generated as the fuel piping system evaluation information Id.

  The evaluation information generation unit S4 corresponds to information such as the amount of each fuel passing through each part of the fuel piping system of the steam using facility P in the fuel piping system information Jb in the comparison information Jg and these information in the reference information Je. Corresponding to each display body among the values of the amount of fuel acquired in the vicinity of each display body in the fuel piping system image Gc based on the comparison information with the reference value (magnitude relation, difference thereof, etc.) The value of the amount of fuel passing through the part to be displayed is displayed in a state associated with the comparison information. The state in which the fuel amount value is associated with the comparison information means, for example, that each fuel value is displayed in different colors according to the magnitude relationship or difference from the reference value, or the numerical value is emphasized. The numerical values are enclosed in a frame, shaded and displayed, or the arrows and lines connecting the devices and the pipes are color-coded or highlighted.

  In the fuel piping system image Gc, the equipment configuration display column gc1 indicating the fuel piping system of the steam using equipment P, the total amount of generated fuel gas of the steam using equipment P, the total fuel gas consumption, the unknown gas amount, the unknown gas rate (total A fuel gas consumption display column gb2 indicating the ratio of the unknown steam amount to the fuel gas generation amount) and a fuel etc. display column gb3 indicating the consumption of each fuel in the steam using facility P are displayed.

  In the equipment configuration display field gc1, display bodies 30 to 38 showing the respective configurations described in FIG. 2 are displayed. And in the vicinity of each display body 30-38 in the equipment configuration display column g1, each fuel fed from each display body 30-38 or supplied to each display body 30-38 (in this example, fuel gas, Information on the amount (t / h) of fuel (C4 fraction) is displayed in a state associated with the comparison information (in FIG. 10, the value higher than the reference value is shaded and displayed. The low value is shown in a box).

  In the fuel gas amount display column gc2, the total fuel gas generation amount, the total fuel gas consumption amount, the unknown gas amount, and the unknown gas rate of the steam using facility P are displayed in a state associated with the comparison information (in this example, from the reference value) In addition, a high value is displayed by shading, and a value lower than the reference value is displayed in a frame).

  In the fuel etc. display field gc3, the difference between each fuel consumption (in this example, fuel gas, fuel for C4 fraction, fuel A consumption) and these reference values in the reference information Je, and the amount converted value of the difference are shown. indicate.

  As one piece of evaluation information, the evaluation information generation unit S4 is based on the device information Jc, for each device (steam generating device Gs, steam using device Us, etc.) in the steam using facility P, in addition to the target device, Configuration diagram information (equipment evaluation information) Ie around the device indicating the pipe with a display body is also generated. Specifically, as the device evaluation information Ie, for example, device images Gd and Ge as shown in FIGS. 11 and 12 are generated.

  The evaluation information generation unit S4 is based on comparison information (such as a magnitude relationship and a difference thereof) between the measurement value or detection value in the device information Jc and the reference value corresponding to these in the reference information Je among the comparison information Jg. In the device images Gd and Ge, each display is displayed in a state associated with the comparison information. The state in which each display body is associated with the comparison information is, for example, a state in which each display body is color-coded or emphasized according to the magnitude relationship or difference between the measurement value, the detection value, and the reference value.

  For example, a device image Gd as shown in FIG. 11 is generated as the device evaluation information Ie around the first medium to high pressure turbine 14 that is the steam using device Us. In the image Gd, the display bodies 14, 20, 50 to 72 and T showing the respective components described in FIG. 5 are displayed in a state associated with the comparison information (for example, in FIG. If it is determined to be abnormal, it surrounds that part).

  Further, for example, a device image Ge as shown in FIG. 12 is generated as the device evaluation information Ie around the intermediate pressure turbine 20 that is the steam-using device Us. In the device image Ge, the display bodies 20, 80 to 93 and T each showing the configuration described with reference to FIG. 6 are displayed in a state associated with the comparison information (for example, in FIG. If it is determined, the part is surrounded.)

  As one piece of evaluation information, the evaluation information generation unit S4 is based on the drain discharge point information Jd, information on a layout diagram that displays the drain discharge point (steam trap T and valve B) in the steam using facility P with a display body, Drain discharge location evaluation information Ie indicating determination information on the state of each drain discharge location is also generated.

  Specifically, the evaluation information generation unit S4 corresponds to the device status information (temperature, vibration, etc.) of each drain discharge location and the reference information Je among the comparison information Jg as the determination information of the state of the drain discharge location. The status of each drain discharge point is determined based on the comparison information with the reference value, and whether the state is normal or abnormal, the type of abnormality (steam leakage abnormality, trap clogging abnormality, temperature abnormality, etc.), Information that determines the degree of abnormality in stages (for example, attention level, failure level, etc.) is generated.

  The steam leakage abnormality is an abnormality in which steam flows out beyond an allowable limit while it is required to discharge only condensate while preventing the steam from flowing out as an original function of the steam trap T. The trap blockage abnormality is an abnormality in which condensate is not discharged smoothly (that is, trap clogging), and the temperature abnormality is an abnormality in which the trap temperature ts or the trap ambient temperature to deviates from the appropriate range to the lower side or the higher side. is there.

  Based on the determination information, the evaluation information generation unit S4 displays the drain discharge as the drain discharge location evaluation information Ie, for example, in a state where each display body as shown in FIG. 13 is associated with the determination information. A drain discharge location image Gf which is an arrangement diagram of locations is generated. The state in which each display body is associated with the determination information is, for example, a state in which each display body is color-coded, emphasized, or changed in display according to the content of the determination information.

  The drain discharge part image Gf shows the arrangement of the drain discharge part in a part of the steam using facility P, and each drain discharge part is displayed as the display bodies T and B at the arrangement place. And each display body T and B is displayed in the state linked | related with the said determination information. In this example, for example, in the case of the display body T, in FIG. 13, 100 indicates that the state of the steam trap T is normal, and 101 indicates that the state of the steam trap T is a caution level for abnormal steam leakage. , 102 indicates that the state of the steam trap T is at a failure level with abnormal steam leakage, 103 indicates that the state of the steam trap T is abnormal in temperature, 104 indicates that the steam trap T is not in use, 105 indicates Indicates that the valve status is normal. Thus, the state of the drain discharge location can be grasped visually from the image Gf.

  Further, in the layout diagram of the drain discharge location which is the drain discharge location evaluation information If, by selecting each display body T, B by the selection process to the instruction input unit 7, the layout location corresponding to the selected display body T is obtained. Detailed information and construction instruction information on the installed drain discharge points are displayed. As detailed information, the details of the state of the drain discharge location and history information such as past failure information and inspection results are not limited to the information of the steam trap T and valve B currently installed at the location, It is displayed over the information of the past steam traps T and valves B that have been placed and replaced in the past. The construction instruction information includes the image of the corresponding steam trap T and valve B, information on the location of the steam trap T and valve B, the location and type of the corresponding steam trap T and valve B, and the content of the judgment information (the type of abnormality, the abnormality The appropriate construction instruction according to the degree) is displayed.

  In addition, as a layout view of the drain discharge location in the drain discharge location evaluation information If, the drain discharge location (steam trap T and valve B) is displayed on the map showing the process flow in the steam using facility P with a display body. Also good.

  By these steam piping system evaluation information Ic, fuel piping system evaluation information Id, equipment evaluation information Ie, and drain discharge location evaluation information If, not only the steam generation cost C but also the amount of steam, the amount of fuel, the state of each device, the drain discharge location The necessity of improvement for the steam-using facility P can be evaluated in consideration of the state information of the state, and accordingly, the necessity for improvement for the steam-using facility P can be accurately evaluated.

  In addition to the evaluation information I, the evaluation information generation unit S4 generates an image Gg listing improvement ideas as shown in FIG. 14 based on the improvement idea information Jf.

  The evaluation information generation unit S4 selects one or more of the listed improvement ideas by the instruction input unit S7 (or based on the improvement measures as the above-described improvement evaluation information Ib), thereby selecting the selected improvement idea ( Alternatively, the improved steam generation cost C ′, the improved steam piping system information Ja ′, and the improved fuel piping system information Jb ′, which are information after the implementation of the above improvement measure), are calculated. The improved steam generation cost C ′ is the value of the steam generation cost C after the improvement is performed, the improved steam piping system information Ja ′ is the information after the improvement of the steam piping system information Ja, and the improved fuel piping system information Jb ′ is the fuel piping. This is information after the improvement of the system information Jb.

  Then, the evaluation information generation unit S4 performs graph information Ia, improvement evaluation information Ib, steam piping system evaluation information Ic based on the improved steam generation cost C ′, improved steam piping system information Ja ′, and improved fuel piping system information Jb ′. The fuel piping system evaluation information Id is updated. Then, by displaying the updated information Ia to Id on the monitor S5, it is possible to grasp the operation status of the steam-use facility P after the improvement from the comparison with the reference information Je.

  The evaluation information generation unit S4 compares the values in the improved steam piping system information Ja ′ and the improved fuel piping system information Jb ′ with the corresponding values in the steam piping system information Ja and the fuel piping system information Jb. The improvement comparison information Jg ′ (the magnitude relationship and the amount of the difference) is generated, and the steam piping system evaluation information Ic and the fuel piping system evaluation information Id are updated based on the improvement comparison information Jg ′ instead of the comparison information Jg. It may be. That is, the steam piping system evaluation information Ic and the fuel piping system evaluation information Id correspond to each display body of the improved steam piping system information Ja ′ and the improved fuel piping system information Jb ′ in the vicinity of each display body. The vapor amount or fuel value passing through the part is displayed in a state associated with the improvement comparison information Jg ′ (that is, information comparing the information before the improvement and the information after the improvement). Thereby, the effect by implementing improvement can be grasped | ascertained.

  The steam piping system evaluation information Ic, the fuel piping system evaluation information Id, and the device evaluation information Ie are associated with each other. Specifically, by selecting any one of the display bodies 1 to 25 and 30 to 38 in the steam piping system image Gb and the fuel piping system image Gc with the instruction input unit S7, the device corresponding to the selected display body is displayed. An image of the device evaluation information Ie is displayed. For example, by selecting the display body 14 in the steam piping system image Gb of FIG. 9, a device image Gd around the first intermediate-high pressure turbine 14 as shown in FIG. 11 is displayed.

  Also, the device evaluation information Ie and the drain discharge location information If are associated with each other. Specifically, by selecting the display bodies T and B of the drain discharge points (steam trap T and valve B) displayed in the image as the apparatus evaluation information Ie by the instruction input unit S7, the selected display body T is selected. , The image of the drain discharge location information If corresponding to B (for example, the image of the detailed information of the drain discharge location and the construction instruction information described above).

  Of the various pieces of evaluation information Ia to If and improvement idea information Jf generated in the evaluation information generation unit S4 as described above, images (for example, images Ga to Gg) selected by the selection process in the instruction input unit S7 are monitored. Displayed in S5.

Next, the example which evaluated the improvement necessity with respect to the steam use equipment P using the steam use equipment evaluation system S is demonstrated.
First, for the target steam-using equipment P, the investigator performs a facility current state survey for grasping basic information of the steam-using equipment P. In this facility status survey, the investigator is responsible for diagnosis of each device (steam generating device Gs, steam using device Us, fuel generating device Gf, fuel using device Uf and its peripheral devices, various pipes, steam trap T, valve B, etc. Diagnosis such as actually diagnosing with a design, predicting a deterioration state from a design drawing, etc. Then, based on the diagnosis result, the basic information of the steam using equipment P is grasped and stored in the storage unit S6. The reference information Je described above is created based on the basic information.

  Basic information includes specifications and states of each device (steam generating device Gs, steam using device Us, fuel generating device Gf, fuel using device Gf and its peripheral devices, various pipes, etc.), fuel used in each steam generating device Gs. Understand the type, price, etc. In particular, regarding drain discharge points (steam trap T, valve B, etc.), whether there is a problem with the piping layout of the drain discharge point, the state of the steam trap T, the type consistency at the installation location, the surroundings of the steam trap T A comprehensive diagnosis is made such as whether the valve B is normal, and the diagnosis result is included in the reference information Je as a drain discharge location database.

  In order to remotely monitor the state of the steam-using facility P at the time of diagnosis, various detectors D such as a steam trap T, a valve B, and parts that need to be monitored are installed as necessary. Install as appropriate.

  After performing the diagnosis and the installation of the detector D as described above, the necessity for improvement for the steam-using facility P using the steam-using facility evaluation system S is evaluated. In the steam use facility evaluation system S, various information transmitted from each detector D or various information collected by the inspector is periodically input to the data input unit S1, and based on the input various information, The evaluation information generation unit S4 of the steam-using facility evaluation system S uses the graph information Ia, the improvement evaluation information Ib, the steam piping system evaluation information Ic, the fuel piping system evaluation information Id, the equipment evaluation information Ie, and the drain discharge point evaluation as the evaluation information I. Information If is generated. The administrator of the steam using facility P displays the image of the desired evaluation information I on the monitor S5 by the selection process by the instruction input unit S7, monitors the state of the steam using facility P, and based on the evaluation information I Evaluate the need for improvement for steam-using equipment P.

  For example, by displaying the change over time in the steam generation cost C using the graph information Ia, it is possible to accurately grasp and evaluate the operation status of the complex steam-using facility P with the steam generation cost C having a single reference value. it can. In addition, the improvement evaluation information Ib can immediately tell whether improvement is required or whether the driving is good. If the improvement evaluation information Ib indicates that the improvement is necessary or the operation is good, the steam piping system evaluation information Ic, the fuel piping system evaluation information Id, the equipment evaluation information Ie, the drain discharge location By referring to the evaluation information If, it is possible to estimate a factor that requires improvement and a factor that driving is good.

  Furthermore, the improvement measures indicated by the improvement evaluation information Ib, the improvement measures estimated by referring to the steam piping system evaluation information Ic, the fuel piping system evaluation information Id, the equipment evaluation information Ie, and the drain discharge point evaluation information If Based on the improvement idea image Gg as shown in FIG. 14, a desired improvement idea is selected by the instruction input unit S7, and the effect of the improvement can be confirmed.

As described above, in the steam use facility evaluation system S, various kinds of evaluation information Ia to If are combined to use the steam generation cost C, the amount of steam, the amount of fuel, the state of each device, the state of the drain discharge point, etc. The facility P can be comprehensively grasped, and the necessity for improvement of the steam using facility P can be evaluated. Thereby, the steam using facility P can be accurately improved.
In addition, the use of various evaluation information Ia-If is not restricted to an above-described thing.

  Furthermore, according to the steam use equipment evaluation system S, the steam generation cost C, the amount of steam, the amount of fuel, the energy of the steam use equipment P as a whole, such as the steam balance in the steam use equipment P, the heat / electricity balance, and the operating cost. It is possible to grasp the balance, the state of the equipment in the steam using facility P, and the state of the drain discharge location in the steam using facility P. In other words, the steam using facility P is comprehensively considered from the three viewpoints of energy balance, equipment status, and drain discharge location. I can grasp. Then, by using steam evaluation facility S to simulate the need for improvement of steam use facility P and to search for the optimum state, steam use is considered from the three viewpoints of energy balance, equipment state, and drain discharge state. The equipment P can be optimized.

  In addition, the steam-use facility evaluation system S is accessible from the outside via the Internet, and a steam-use facility evaluation system is used by a plurality of people such as a steam-use facility manager, a construction worker, or a management company staff through a personal computer or mobile terminal. S can be monitored and operated.

<Another embodiment>
The steam use facility evaluation system S can be used for the following inventions.
(A) based on the detection information of detectors installed at various locations of the steam-using facility, monitoring the operating state of the steam-using equipment and the steam trap in the steam-using facility,
A steam-use facility management method that optimizes the operation state of the steam-use facility based on the monitoring result.
(B) The steam use facility management method according to (a), wherein an energy balance in the steam use facility is calculated, and an operating state of the steam use facility is optimized based on the calculation result of the energy balance and the monitoring result.
(C) The steam-use facility management method according to the above (a) or (b), wherein the economic effect or the environmental effect obtained when the operation state of the steam-use facility is optimized from the current state is estimated.
(D) A steam-use facility management system that implements the steam-use facility management method of (b) above,
Monitoring means for monitoring the operating state of the steam using equipment and the operating state of the steam trap in the steam using facility based on the detection information of the detectors arranged at various locations of the steam using facility;
A steam use facility management system comprising simulation means (evaluation information generation unit S4) for simulating an energy balance in the steam use facility.

Steam-using facility evaluation system of the present invention can be applied to the evaluation of various steam-using equipment in various fields

S Steam Use Facility Evaluation System S1 Data Input Unit S2 Standardization Operation Unit S4 Evaluation Information Generation Unit S5 Monitor P Steam Use Facility Gs Steam Generation Equipment σi Steam Generation Cost Factor C Steam Generation Cost I Evaluation Information Ia Graph Information Ib Improvement Evaluation Information Ic Configuration information (steam piping system evaluation information)
Jg comparison information x1 1st threshold value x2 2nd threshold value 9-12, 19, 22 Waste heat boiler

Claims (7)

Data that periodically obtains a plurality of steam generation cost factors that form costs necessary for generating steam in a steam generating device in a steam using facility and each amount of steam that passes through each part of the steam piping system of the steam using facility An input section;
A standardization calculation unit that calculates the steam generation cost normalized to a single reference value from the acquired steam generation cost factor;
Based on the calculated steam generation cost, evaluation information for evaluating the necessity of improvement for the steam using facility is periodically generated , and it is evaluated that the steam using facility needs to be improved in the evaluation information. In this case, the operation status of the steam using facility when the improvement measure based on the evaluation information is implemented is calculated, and the calculated operating status of the steam using facility after the improvement and the current operating status of the steam using facility are calculated. and an evaluation information generation unit for generating improved comparison information comparing,
The evaluation information generation unit evaluates that the steam generation facility needs to be improved when the steam generation cost exceeds a first threshold calculated from a reference value of the steam generation cost as the evaluation information. In the configuration,
As the improvement comparison information, the value of each steam amount passing through each part of the steam piping system of the steam-using facility when the improvement measure is implemented is calculated, and the obtained steam amount value and the improvement measure are implemented. And generating comparison information with the value of the amount of steam in the case of
It is the block diagram information of the said steam use installation which showed each part of the said steam piping system with the display body, Comprising: Each display of the value of the said steam amount at the time of implementing the said improvement measure in each vicinity of each display body A steam use facility evaluation system configured to generate the configuration diagram information for displaying a value of the amount of steam passing through a part corresponding to a body in a state associated with the improvement comparison information . Data that periodically obtains a plurality of steam generation cost factors that form costs necessary for generating steam in a steam generating device in a steam using facility and each amount of steam that passes through each part of the steam piping system of the steam using facility An input section;
A standardization calculation unit that calculates the steam generation cost normalized to a single reference value from the acquired steam generation cost factor;
Based on the calculated steam generation cost, evaluation information for evaluating the necessity of improvement for the steam using facility is periodically generated , and it is evaluated that the steam using facility needs to be improved in the evaluation information. In this case, the operation status of the steam using facility when the improvement measure based on the evaluation information is implemented is calculated, and the calculated operating status of the steam using facility after the improvement and the current operating status of the steam using facility are calculated. and an evaluation information generation unit for generating improved comparison information comparing,
The evaluation information generation unit is configured to evaluate whether or not improvement to the steam using facility is necessary based on a change with time of the steam generation cost as the evaluation information,
As the improvement comparison information, the value of each steam amount passing through each part of the steam piping system of the steam-using facility when the improvement measure is implemented is calculated, and the obtained steam amount value and the improvement measure are implemented. And generating comparison information with the value of the amount of steam in the case of
It is the block diagram information of the said steam use installation which showed each part of the said steam piping system with the display body, Comprising: Each display of the value of the said steam amount at the time of implementing the said improvement measure in each vicinity of each display body A steam use facility evaluation system configured to generate the configuration diagram information for displaying a value of the amount of steam passing through a part corresponding to a body in a state associated with the improvement comparison information . Determining a second threshold that is lower than the first threshold;
The evaluation information generating unit is configured to evaluate that the operation of the steam using facility is good as the evaluation information when the steam generation cost is lower than the second threshold. Steam use equipment evaluation system. The steam use facility evaluation system according to any one of claims 1 to 3, wherein the improvement measure for the steam use facility is generated together with the evaluation information . The evaluation information generation unit generates graph information indicating a change with time in the steam generation cost as one of the evaluation information,
The steam use facility evaluation system according to claim 1, wherein the graph information is displayed on a monitor .   The steam use equipment evaluation system according to any one of claims 1 to 5, wherein the steam generation device includes a waste heat boiler that generates steam by waste heat generated in operation of the steam use equipment. The data input unit obtains a reference value of each steam amount passing through each part of the steam piping system of the steam-using facility,
The evaluation information generation unit generates comparison information between the acquired value of the steam amount and a reference value thereof, and is configuration diagram information of the steam use facility in which each part of the steam pipe system is indicated by a display body. The configuration diagram information for displaying the value of the amount of steam passing through the portion corresponding to each display body among the acquired values of the steam amount in the vicinity of each display body in a state associated with the comparison information Produces
The steam use facility evaluation system according to any one of claims 1 to 6, wherein the configuration diagram information is displayed on a monitor.

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